Dodecahedron.
2d
3d + 14 = 11 is the equation.
2-Dimensional
take, for an example, a duck. This is a 3d shape because it has three dimensions. Compare this to a square, which is 2d. the difference is that the duck has a beak, and the square does not.
tetrahedron is a 4 faced 3d shape.
icosahedron
Its a 17 faced 3d shape
A tetradecachedron is a polyhedron, also known as a 14-sided polyhedron or 14-faced polyhedron. It is a convex solid with 14 faces, 24 edges, and 14 vertices. The term "tetradecachedron" can refer to any 14-faced polyhedron, not necessarily a specific shape.
A six faced 3d shape is called a cube.
An 8-faced 3D shape is called an octahedron. It is a polyhedron with eight triangular faces, 12 edges, and six vertices.
A Triangular Prism
Decahedreon
It is a nonahedron.
It is important to learn and remember the name of 3D shapes. A 19 faced 3d shape is called a nonadecahedron.
It is called a trihedron. It does not exist.
Dodecahedron.